Automatic air-valve mechanism for glass-drawing apparatus.



Hf DOUGHAMP. AUTOMATIC AIR VALVE MECHANISM FOR; GLASS DRAWING APPABATUs.

APPLICATION-FILED JAN. 2 9, 1909. V I

Patented Q51". 26, 1909.

3 SHEETS-SHBBT 1.

Q Vituaouo H. DQUG-HAMP. AUTOMATIG AIR VALVE MEGHANISM FOR GLASS DRAWINGAPPARATUS.

APPLICATION FILED JAN. 29, 1909.v

938,305 Patented 00b. 26, 1909.

H. DOUGHAMP. AUTOMATIC AIR VALVE MECHANISM FOR GLASS DRAWING APPARATUS.

APPLICATION-FILED JAN. 29, 1909.

3 SHEETS-SHEET 3.

Patented Oct. 26, 1909.

HENRY DOUCHAMP, or SMETHPORT, PENNSYLVANIA, ASSIGNOR T0 SMETHPORT GLASSFFIGE.

COMPANY, or SMETHPORT, PENNSYLVANIA, A coRPoRA'rro'N or WEST VIRGINIA.

AUTOMATIC AIR-VALVE MEQEANISFI FOB, GLASS-DRAWING APPARATUS.

Specification of Letters Patent.

Patented Get. 26, 1909.,

- Application filed January 29, 1909. Serial N 0. 474,955.

To all whom it may concern:

Be it known that I, HENRY DOUCHAMP, a citizen of the United States,residing at -Smethport, in the county of McKean and State ofPennsylvania, have invented new and useful Improvements in AutomaticAir- Valve Mechanism for Glass-Drawing Apparatus, of which the followingis a specification. I

This invention relates to an automatic air valve mechanism for glassdrawing apparatus of that type designed for drawing hollow glassarticles.

The object of the invention is to provide a Valve mechanism which willbe opened and closed by the upward and downward movements of the drawingmechanism, and which in the upward movement of said mechanism as thecylinder or roller is drawn out will automatically supply a graduallyincreasing volume and pressure of air to the cylinder through theblow-pipe and bait, thereby insuring an accurate supply of air, involume and pressure, to the cylinder as the length of the latterincreases to produce a perfect article.

Another object of the invention is to' provide an automatic valve whichwill 01)- viate the necessity of employing hand-operated valves and theuncertainties resulting from hand-manipulation, which will be accuratelycontrolledby the drawing-tool to supply the exact amount ofair required,and which is susceptible of ready and convenient adjustment to regulateits action, to an exceedingly accurate degree.

With these and other objects in view, the invention consists of thefeatures of construction, combination and arrangement of partshereinafter fully described and claimed,reference being had to theaccompanying drawin s, in wh1ch:

igure 1 is a diagrammatic view of a glass drawing apparatus embodying myinvention. Fig. 2 1s a side elevation, on an enlarged scale, of theupper portion of the air supply pipe and automatic valve, showing themovement of the jointed pipe sections in full and dotted lines. Fig. 3is a view of the hollow valve plug. Fig. 4 is a cross section throughtlie valve mechanism on line 33 of Fig. 3. Fig. 5 is a section on line5--5 of Fig. 4. Figs. 6 and 7 are detail cross-sections through thevalve proper showing the relative positions of the fully opened.

Referring to the drawings, 1 designates the furnace or pet containingthe supply of molten glass from which the cylinder or hollow article isto be drawn; 2, the drawing tool, comprising a blow-pipe of ordinaryform carrying the bait 3; 4, the frame or carriage supporting said tooland by which it is designed to .be raised and lowered; and

5 a hoisting rope or cable connected with the carriage and passing overan elevated guide pulley 6. Any suitable construction of furnace or pot,carriage and hand or power operated hoisting mechanism may be used,

The air supply pipe 7 extends vertically and communicates at its lowerend in practice with any suitable source of air supply. The upper endofthe pipe is provided with a rigid horizontal branch 8, to the outerend of which is jointed, as at 9, a depending swinging pipe section 10.The lower end of this pipe section 10 is jointed'or pivotally connectedby the parts forming the ordinary valve mechanism to the outer end of aswinging pipe section 11, which is pivotally connected at its inner endto the carriage 4 or blow-pipe 2 and communicates with the upper end ofthe latter. In the lowered position of the carriage l shown in Fig. 2,which is the position it occupies when the bait is initially broughtinto contact with the batch of molten glass at the limit of downwardmovement of the blow-pipe, thetwo pipe sections 10 and 11 inclineddownwardly and inwardly at an oblique angle to perpendicu lar, asindicated in full lines. As the carriage is raised in the drawingoperation, the pipe section 11 will be carried upward with it until,when the carriage reaches the limit of its upward movement, the pipesection 11 will be raised to a horizontal position and will in itsmovement transmit a forward swinging movement to the pipe section 10.

parts when the valve is fully closed and The automatic valve mechanismis shown in detail in Figs. lto 7, inclusive, and comprises a U-shapedbody or casing 12 embodying an upper horizontal frame 13 and dependingvertical branches l lfand 15. The branch 13 is provided with aninternally threaded inlet projection 16 receiving the lower threaded endof the pipe section 10, by which it is coupled thereto, while the lowerend of the branch 14 is formed with a transverse opening 17 and theinner side of the lower end of the branch 15 with a lateral opening 18.-A hollow, tapered valve plug 19 extends betweenthe lower ends of thebranches 14 and 15, one end of the plug passing through the transverseopeningof the branch 14: and the other end of the plug entering thebranch 15 through the opening 18. The first named end of the plugisclosed by a head 20 having a flange 21 to hold it from inwardlongitudinal movement and is provided in its side with a port 22communicating with said branch. 14, while the opposite end of the plugis open and in direct communication with the branch 15 which it enters.

The plug is provided in its lower side with a comparatively smallprimary feed port 23 and in its upper or diame rically opposite sidewith a transversely extending tapering feed port or passage 24, which,as shown in Figs. 3, 6 and 7, extends approximately half way round thecircumference of the plug and is of V-forin. The said port and passageare arranged midway of the length of the plug, which portion of the plugfits within and extends through a hub or sleeve 1-5 having a centralrearwardly extending internally threaded projection or union 26receiving the outer threaded end of the pipe section 11. The hub orsleeve isof less length than the distance between the lower ends of thebranches 1 and 15 of the casing 12, and between the same are ar rangedcollars 27 which hold the parts againstrclative endwise movement and aresecured to the valve plug by set screws 28, thus detachably' securingthe plug in position. .From these collars depend arms 29 carryingweights 30 which are fixed through the collars to the valve plug andoperate asforegoing description that the valve body or casing 12 forms aunion coupling the valve to the pipe section 10, and cooperates with thehub 25 to form a knuckle joint pivotally connecting the said pipesection lO'with'the pipe section 11.

Figs. land 2 show the normal position of the parts in full'lincs, andFig. 6 the normal arrangement of the parts of the valve, from which itwill be observed that the feed port 24; is wholly closed by the hub 25,while the port 23 is open for the feed of a small amount of air to theblow-pi.pe, whereby provision is made for the formation of the cap inthe initial part of the operation. When this is accomplished, thedrawing action is plished by a gradual automatic opening of so the feedpassage 24 by the outward movement of the jointed pipe sections 10 and11. As the carriage 4 moves upwardly, it will be apparent that thebranch 11 will be moved upward with it and also moved outward and willtransmit an outward swinging movement to the branch or pipe section 10,by which, although the valve plug is maintained in'a relatively fixedposition through the gravity action of the weighted arms, a relativeturning movement between the plug and hub will be effected, and whichwill progressively increase as the pipe section 11 is moved upward andthe pipe section 10 outward. This movement of the hub is sufficient toclose the primary feed port 23 after the cap is formed and the drawingmovement of the drawing tool is continued, and at this time to exposethe narrowest portion of the feed slot or passage 24, for the supply ofa comparatively small amount of air to the blow-pipe at this stage inthe drawing operation. As the drawing operation progresses, however, andthe length of the, cylinderor roller is increased, the con- 105 tinnedupward movement of thepipc section -11 and outward movement of the pipesection 10 results in the slot 24 being gradually opened until, at theend of the drawing operation, it is open to its fullest extent. 110

Hence the volume and pressure of air supplied to the blow pipe andcylinder during the drawing operation will be uniformly andprogressively increased, as requirement demands, by which the productionof a perfect cylinder or roller is insured. When the cylinder is removedand the carriage lowered to dispose the parts in proper position for thebeginning of the next ensuing operation, the feed slot 24 will be closedand the 120 port 23 again opened for thefeed of the initial smallquantity of air. I I

It will be seen from the foregoing, description, that my inventionprovides an automaticfair valve mechanism which dis-. 2

of the drawing tool and in exact accordance with the speed of movementthereof so as to gradually supply a properly increasing volume andpressure of air to the blow pipe and cylinder. By this mode of operationexactly the amount of air required at each stage in the drawing of thecylinder and no more is supplied, by which an absolute certainty ofaction is insured,re sulting in the production of cylinders or rollerswhich are of uniform thickness and excellence in each operation of theapparatus. If at any time the valve mechanism should feed too muchor toolittle air, this defect may be positively and accurately corrected byadjustment of the -collars 27 on the valve plug to regulate the relativepositions of the plug and the weighted controlling arms.

Having thus fully described the invention, what is claimed as new, is

1. In an apparatus for drawing hollow glass articles, a drawing toolhaving an air feed passage, an air supply pipe provided with .acontrolling valve, and a valve actuating device connecting said valvewith the drawing tool, said device forming an air conduit. communicatingwith the air passage of the tool.

2. In an apparatus for drawing hollow glass articlcs, a drawing tool.provided with I conduct-or connecting an air passage, an air supply pipehaving a rotary controlling valve, and an actuating device connectingsaid valve with the drawing too], said device forming an air conduitbetween the valve and the air feed passage of the tool.

3. In an apparatus for drawing hollow glass articles, a drawing toolhaving an air d passage, an air supply pipe provided with relativelymovable sections, and a valve connected with and actuated by themovements of said sections, one of said sections being connected withthe drawing tool and forming an air conduit communicating with the airpassage thereof. 7 i

I 4. Inpan apparatus for drawing hollow lass articles, a. drawing toolhaving an air 'eed passage, an air supply pipe, ajointed said pipe withthe drawing tool and movable with -the latter,

.and a valve in said: jointed conductor arranged to be opened and closedby the movements thereof.

5. In the art of manufacturing glass, a gatherer adapted to draw glassin cylinmeal or other inclosed form, a conductor for feeding a coolingliquid to the draw, said conductor having a portion movable with thegather-er, and a regulating valve in said conductor controlled by themovement of said movable portion.

6. In the art of manufacturing hollow glass articles, a drawing tool, apipe for sup- )lying a cooling fluid to the draw, said pipe eingprovided with a movable portion, and

connecting means between the drawing tool i said sections beingconnected for movement with the drawing tool, and a regulating valvebetween said jointed sections and controlled by the movements thereof;

8. In an apparatus for drawing hollow glass articles, a drawing toolhaving an-air feed passage, an air supply pipe, conductors pivotallyconnected with said pipe and the drawing tool, and a valve forming apivotal connection between said conductors and opened and closed by themovements thereof under the movements of the drawing tool.,

9. In an apparatus for drawing hollow glass articles, a drawing toolhaving an air feed passage, an air supply pipe provided with acontrolling valve, and a direct actuating connection between said valveand the drawing tool, said connection forming an air conduit leadingfrom the valve to the tool.

10. In an apparatus for drawing hollow glass articles, a drawing toolhaving an air feed passage, an air supply pipe, a conductor pivoted tothe pipe and carrying a valve member, a second conductor pivoted to thedrawing tool and connecting-with the air passage therein and carrying acomplementary valve member, said valve members forming a pivotalconnection between the conductors, whereby the valve is adapted to beopened and closed in the movements-of the drawing tool.

11. In the art of manufacturing hollow glass articles, a gathereradapted to draw glass in cylindrical. or other inclosed form,

said gatherer having an opening to com municate with the draw, an airsupply pipe "provided with jointed sections, one of said sections beingconnected for movement with the gatherer and communicating with theopening therein, and a regulatin valve at the point of intersection ofthe jointed pipe sections andopened and closed by the reverse movementsthereof on the up and down movements of the gatherer. v

12. In the art of manufacturing hollow glass articles, a drawing tool,an air supply pipe having a pair of pivoted sections, one of saidsections being movable with the drawing tool, and a regulating feedvalve at the point of intersection of said pipe sections and controlledby the movements thereof.

13-. In the art of manufacturing hollow glass articles, a drawing tool,an air supply; pipe provided with ointed sections, one connected withthe'drawing tool, a regulating feed valve at the point of intersectionof the Jointed sections, said valve being gradually openedby themovements of the jointed sections on the operative movement of the 4 ingtool.

14. In an apparatus for manufacturing hollow glass articles, a drawingtool having a passage for introducing air into the draw, an air supplypipe including a pair of jointed sections, one of said sections being incommunication with the passage of the tool and connected for movementwith said tool, and a regulating valve at the point of intersection ofsaid sections, said valve comprising relatively movable members onehaving a tapering feed passage controlled by the other, the latter beingoperated to gradually uncover said passageby the movement of the pipesections in the drawing movement of the tool. I

15. In the art of manufacturing hollow glass articles, the combinationwith a drawing tool having a feed passage, and operating means for saiddrawing tool, of an air conductor having a movable section connectedwith the tool and communicating with said passage, and an air feed valvein said conductor opened and'closed by the movements of said movablesection in the upward and downward movements of the drawing tool.

16. In an apparatus for manufacturing hollow glass articles, a gathererhaving a feed passage for introducingair into the an ticle as it isformed, an air feed pipe, jointed comluctors communicating between saidpipe and gatherer, one of said conductors being connected with the pipeand movable in one plane and the other with the gatherer and movable ina different plane, and a regulating valve arranged at the point ofintersection of said conductors so as to be opened by the movement ofthe conductors in the operation of the gatherer.

17. In an apparatus for manufacturing hollow glass articles, a drawingtool, an air supply pipe, said pipe having jointed sections connectedfor movement with the draw- I ing tool, and a regulating valve at thepoint ,pipe having jointed sect-ions movable in planes at right anglesto each other in the operative movement of the drawing tool,

and a valve comprising relatively movable tions, one of said membersbeing provided with a normally open feed port and tapering feed passage,the latter being'gradually opened by the other member on the operativemovement of the drawing tool.

21. In an apparatus for manufacturing hollow glass articles, an air feedmechanism the point of intersection of said pipe secf controlled by thedrawing tool and including a conductor having jointed sections movablein different planes, and a graduating valve at the point ofiintersection of said sections,-

comprising relatively movable elements carried by the sections, one ofsaid elements having a normally open feed port and a tapering feedpassage, said port being closed and said passage gradually opened by themovement of the other member respectively at the beginning and duringthe progress of the drawing operation. v

22. In an apparatus for manufacturinghollow glass articles, an air feedmechanism automatically controlled by the drawing tool and including aconductor having sections jointed to move at an angle to each other avalve comprising a hollow plug carried by one of said sections and a hubcarried by the other section, said plug being provided with feedapertures controlled by the hub," and gravity controlled means formaintaim ing the plug in a prescribed position, whereby the hub isadapted to turn thereon and control said apertures in the movements ofthe sections.

23. In the art of manufacturing hollow glass articles, the combinationwith a draw- 1 ing tool having an air passage, of an air supplypipefhaving movable sections. ivotally connected to each other andto therawing tool and communicating with said air passage, and a valve at thepoint of intersection of said sections and controlled by the swingingmovements of the sections in thelup and down movements of the drawing Intosti'mon whereof I aflixmy'signatura in presence 0 two witnesses.

. HENRY DOUGHAMP.

Witnesses:

Tnos. W. CAMP, J. S. WALKER.

